#include<bits/stdc++.h>
#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR 0
#define INFEASIBLE -1
#ifndef OVERFLOW
	#define OVERFLOW -2
#endif
#define MaxSize 50
typedef  int Status;
typedef int ElemType;
using namespace std;
typedef struct {
	ElemType data;
	struct LNode *next;
} LNode;
